Machine for manufacturing paper tubes.



A. ABEL. MACHINE FOR MANUFACTURING PAPEE TUBBS.

APPLICATION FILED 12, 1906.

eases 7 m 91 Ma 1% m m w Wm ma n 7 m j m A. ABEL;

MACHINE FOR MANUFACTURING PAPER TUBES.

APPLIOATION FILED MAR. 12, 1906.

Patented July 27, 1909.

6 SHEETS-SHEET 2.

A. ABEL. MACHINE FOR. MANUFACTURING PAPER TUBES. APPLICATION FILED MA 12, 1906,

Patented July 27, 1909.

6 SHEETS-SHEET 3.

A. ABEL.

MACHINE FOR MANUFACTURING PAPER TUBES.

APPLioATmN FILED MAR. 12, 1906.

wmwa Patented July 2?,1909.

6 SHEETS-SHEET A. ABEL.

MACHINE FOR MANUFACTURING PAPER TUBES.

APPLICATION FILED MAR.12, 1906. 929 1 Patented July 27, 1909. 6 SHEETS-SHEET 5.

I A. ABEL. MAGHI NE FOR MANUFACTURING PAPER TUBES.

J APPLICATION FILED MAB..1Z L906. 929,180, Patented July 27, 1909. 6 SHEETS-SHEET 6.

piarrn sa PATFIT "1 AUGUST ABEL, 9F BADEN GERMANY.

To all whom it may concern:

Be it known that I, AUoUsT ABEL, a subject of the Grand Duke of Baden, and resident of Baden, in the Grand Duchy of Baden, German Empire, chief engineer, have invented certain new and useful Improvements in Machines for Manufacturing Paper Tubes, of which the following is an exact specification.

The present invention relates to machines for manufacturing paper tubes for cigarettes and the like from fiat paper strips. In such machines the paper strip is led from a reel or bobbin intermittently in suitable lengths. These lengths are folded and joined .by pasting or by crimpii'ig according to the machine herein described by crimping and the lengths are cut off. After this one end of the paper tube so formed is closed or tucked in by a tucker.

The present invention has particular reference to the folding means and the delivery of the folded paper tube to the cutting device. It also however deals with the means used fortucking in the edges of the cut olf aper tube length at one end.

The improved construction will be more readily understood from the following detailed description and the novel features of the invention will be set forth in the claims.

In the drawings Figure 1 is a partial side view of a paper tube making n'iachine in accordance with'this invention, F lg. 2 is a plan and Fig. a view looking from the righthand in Fig. 1, while Fig. 4 is a, view looking from the lefthand in same figure. The details of the invention are illustrated in the remaining figures, in which: Fig. 5 is a front view of the tucking in device for closing one end of the paper tube, Fig. 3 is a side view partially in section on'the line C-'D of Fig. 5. Fig. 7 is a detail of'the tucker and its slide looking from the rear side, Fig. 8 is a vie. Y looking from the end of the slide, while Fig. 9 is a separate view of tl-.e tucker. i igs. 10, 10 and 10 illustrate the tucker in dif .fcrent positions, Fig. 11 shows the cut off length of paper tube, Fig 11 is an end view showing the paper edges folded into one another prior to the crin'iping. Fig 12 is an end view of the paper tube after the end has been tucked in or clospd. Fig. 13 illustrates a modified form of device for operating the tucker plate. Figs. 14: to 27' illustrate the folding spindle together with the folding sleeve and edge folding knife.

' Specification of Letters Patent. Application filed March 12, 1906. Serial No. 305,643.

Patented July 2?, 1969.

Fig. 15 is a separate view of the extension piece of the folding spindle. Fig. 1G is a separate view of the movable expander, which enables the cutting to be efiected While the tube is flattened. Fig. l? is a view from the lefthand and Fig. 18 is a section on the line E 'F of Fig. 15. Fig. 19 is a view showing the parts of the folding spindle assenibled in plan, while Fig. 20 is a side view showing the receiving sleeve in section. Fig. 21 is an end view looking from the lefthand side in Fig. 20. Fig. 22 is a view similar to Fig. 20 showing the parts in a different position and also illustrating the method of suspending the spindle. Fig. 23 is a vertical section on the line G-.H of Fig. 9.2, the crimping wheels are not shown in section. Fig. 2st is a section on the line I-K of Fig. 22. Fig. 25 is a separate side view, Fig. 26 an end view and Fig. 21' another side view of the preliminary folder which gives the paper strip the first bend before it is entered into the folding sleeve proper.

In the figures similar parts are designated by similar reference characters.

Referring to Figs. ll the paper strip 2 fed from a bobbin or reel not shown passes over the folding spindle to the prelin'linury bender (30 which will be hereinafter more fully described and then to the sleeve 59. This sleeve has coacting with it a folding knife (33 (see Fig. 30) which in the known manner bends over the mlges ol' thc paper strip so that they engage in one another in the manner seen in Fig. ll. The tubeso bent then passes over the folding spindle 56 to the crimping wheels 21 and where the edges are crimped in the well known manner and as indicated in Fig. l1. ing wheel 24 is driven intermittently in the" manner hereinafter described so that only the required length of paper strip is fed forward at one time. The fed forward lengthofcrimpcd paper tube is then cut by an arrangement not illustrated and forming no part of this invention. the crimped paper tube however to the shears is such that the paper tube can be ilattended by the shears and a much cleaner edge is thereby secured. After cutting the paper tube passes to the tucking iii device 102 and 103.

-Having indicated generally the organiza tion of this machine i shall now proceed to details.

The delivery of In Figs. 14 to 27 the folding spindle is illustrated and is built up of different parts. It may be here stated that the number of parts can; be modified according to the special circumstances of the work.

In Figs. 1st to 16, 56 is the main spindle part suspended from the standard of the machine by means of the hanger 57 hereinafter described. 25 is a small knurled wheel situated in a slot 58 of the spindle 56 and cooperating with the knurled wheel 24L which as stated above moves intermittently. The knurled crimping wheel 24 is fixed on the short axle 33 (see Figs. 1 and 2) carried by the standard 3% of the machine (Fig. 3). On the part 34 of the axle 33, there is loosely mounted the toothed wheel 35 to which the disk 30 is secured. 37 is a ratchet wheel fixed to the part 3% and coiiperating with a pawl 38 pivotally connected with the disk 36. The toothed wheel 35 engages with the-segmental toothed bar 3%) carried by a double lever 40. 7 42. The arm 41 is provided witha roller 43 resting on a curved disk t'lmounted on the main driving shaft 45.. It spring 53 tends to hold the roller L3 continuously in contact with the curved disk H. in adjustable stop 52 determines the extent to which the spring 53 can cause the lever to follow the cam or curved disk El i: and a movingover a scale 51 indicates the amount of the feed. This feeding device and the lliQillOd of regulating the amount of feed forms no part of the present invention and need not be further explained. 59 is a sleeve loosely ei'nbracing the main spindle part at; and acting as a former for bending the paper strip into tube form around the main spindlepart 56. Behind the part 59 the device illus lrated in Figs. 25 to 27 is arranged for preliminarily imparting to the tlat paper strip a U-form. GO-is a bow embracing the rod. 56 and in connection with a bar 61 by means of which the part (30 is fixed to the part 59. The screw 02 projecting through the part 59 serves for eilecting this connection. (33- is the folding knife which is situated in a. longitudinal depression on the spindle part. 56 and is arranged to produce a fold at one edge of the paper strip into which the other edge passes as illustrated in Fig. 11 The folding knife-6; is carried by the sleeve 52). The folding knife and its act ion need not be here further described as the same forms no part ofrthis invention. For crimping the paper tube with its edges arranged as shown in Fig. 11 the tube passes with the folded edges between the knurled wheels l-t and 25. In front of the knurled wheel 25 the rod 5V is provided with a conical aperture (33 into which its a corresponding conical edge (3-! on the part (35 which is provided on its under side with a groove (26. The part (35 is con tinned by the leg 7 as seen in cross section- 41. having its fulcrum at' pointeretjf in Fig. 18 and at its front end the leg 67 is shaped into a head 68. As seen in Fig. 15 an inclined face 69 is provided on the under side of this head. The groove 66 is alsoa filling core for the interior ofv the tube..

When the rod 71 is withdrawn in the method hereinafter described, the paper tube may however be collapsed toward one .end. An eye 73 is provided on the rod 71 and is adapted to slide on the rod 74 (see Fig. 15), At the rear end of the rod 71 there is provided a sleeve 75 which is adapted toslide over the reduced part. 76 of the main spindle part 56, (see Figs. 14 and 19). A leg 77 is provided on the sleeve 75 for the purpose hereinafter described. v

In Fig. 1!) the folding spindle is ilhistrated as 'a whole and in the position in which the two heads 72 and GS of the parts 5 and 71 are opposite each other so that the filling core forms at its front end a cylinder fitting tightly within the finished paper tube.

In Fig. 20 the folding spindle is illustrated as 'a whole in side view andin combination with a cylindrical sleeve 7 8 in closing the front part. of the folding spindle.v

From Fig.2l it will be seen that the part: 78 is internally of substantially oval shape.

In Fig. 92 the folding spindle is illustrated with the partsnn another-position,

that is to say the head 72 (see Fig. 16) is withdrawn from the head (i8 and thereby the filling core is contracted. Owing to the inclined part 70 and the oval core the paper tube may be flattened to form a wedgeshapcd piece as indicated by the dotted lines 79, the narrow end of which wedge lies in the plane L M. In this plane the paper tube is cut ofl by a cutting device which does not form part of my invention. OW- ing to this flattening the edges of the paper are neatly out. After the required length of paper tube is cutfrom the paper strip the. part. it is displaced in order to bring lllc head (38 and 72 opposite each other into the position shown in Fig. 20. This manipulation is facilitated by the inclined face 69 of the head (i8. In order to obtain good guidance of the rod T1 the latter slides in a corresponding groove T2? in the spindle 56 (see Fig. I l).

In the arrangement for suspending the folding spindle. (see Figs. 23, 21) there is a piece 80 secured to the standard of the machine and Si is a set screw which is threaded into the opening 82 (see Fig. and mounted on the holding piece 80. This piece is slotted at 823 (see Fig.2) and in this slot thereprojects a piece 57 which is provided with a notch for engaging a bolt 85. Bv turnin the set screw Si the folding u 3: V

' spindle may be adjusted as regards its horizontal position, At the rear end oi; the. folding spindle the arrangement is t rorideel. for actuating the piece 71 (see In this device, 86 is a holding piece (see also Fig. 2) which is connected with the gyro jeeting arm 77 by means of the screw 87. Opposite to this end the piece 85 is connect: ed with the crank lever 88 by the bolt 8? fixed to the slidable rod 90 carried by the bearings 91, 92 of the standard of the machine. On the rod 9'0 there is mounted the arm 93 carrying the roller M which rests on the cam diskllfi. The latter is situated in the driving shaft 45 and rotated thereby, (see Figs. 1 and in order to prevent rotat on of the rod 90 the feather 96 projects into a groove or feather seat 97. 'Ihe arm .3 connected with a spring; 98 cured to the standard of themachine The device just described operates the rod 71. of the folding spindle and 'it will be seen therefrom that by the revolution of the curved disk 95 the rod 90 is moved to and fro which motion transferred by the cranked lever 88 and the holding piece 86 to the grojection 77 of the piece 71. The curved disk 95 is arranged in such a manner that. the part 71 is withdrawn when the required length of paper tube is being out from the paper strip'and is advanced when the paper tube to be closed or tucked in at its front end.

The operation of the folding spindle is as follows: The knurled wheels 2% and 25 operated as described serve for feeding interimittently the paper strips 2 and for crimping the edges of th'e'tube in the well-lnu;-wn manner. The bow (30 eomerts the tint pager .-trip into a'partially circular or U-forni and the sleeve fifilimparts to the strip the complete tube-shape. The knife (33 folds one edge of the strip, as seen in Fig. 11 in the manner well known. After being cr inped by the knurled Wired and still in connection with the paper strip, the paper tube is fed for-mini by the knurled wheels and condueted through the guide sleeve 78 ll hen pissing the latter the rod '21 is in its withdrawn position and the heads 53 and are disengaged (see Fig. The pa tube may therefore easily be pressed fa the shears which are not illustrated, and which one 'ate at the point indicated by ti 3 line L M and thereby a smooth and strai t out is obtained. After this the part 79"- the paper tube to be ranstorn'ied or widened into cylindrical shape and for this purpose the rod 71 is moved forward the crank lever 88 and the earn Ll'iSiL 51%, so as to CllllrwU the heads (38 and to f'liiflil the flattened tube into eirenl; r form. tube is now to be closed or tact-zed tucker is illustrated in Figs. 5-12 in which '58 denotes a stationary hollow shaft as men'- tioned above with reference to Figs. 29 and and inelosing the front end of the folding spindle. 39 a hollow shiit't rotatably mounted on tin part 78 and having east or a toothed wheel 100 at termed. thesewnl one end At the other end the closing head 181 is lined on the shaft 99, seen in Figs. 6 gind 8. The front. side of this head is provided with two guides 102 for guiding the closing or tucking plate 103 This tucking Jlate has a notch 10h widenino toward; the

folding spindle and is adapted to move s1- inulb ously triiinsversely to the spindle and to revolve about the spindle in the manner hitherto known. For the-p11" 1ose or": moving the tucker ate 103 transversely to the folding spindle a. knee lever 105 and 105 is provided hinged at10 to the arms 10? of the head 161, The arin-105 engages by means (it the pin'108 with the plate 103. ()n the hollow shaft 99 there is mounted a sleeve 110 which is prevented from rotationby a key 109 and which-carries on its arms 111 thepin 112. 'lhis'pin engages with the torloshaped end of the arm 105 In the groove 113 (see 7) the roller 11% engages and carrie by a lever illi pivoted about the axle 116 and provided at its lower end with a' roller 11? traveling on the cam disk 118. This canrdisk is mounted on the drivin shai't e5. The spring 119 tends to hold the lever 115 continuously in contact with the cam disk 118. This device operates as 'follows:--The hollow shaft 99 is rotated by the toothed wheel 120, seen from Fi s. 1 to 2-3, This toothed wheel is operated h means of the Wheels 121, 122 and 123 which last mounted on the driving shaft 45. At the sanie'tin'ie the lever 1% is oscillated under the action of the cam disk lls and sleeve is thereby reciproeated on ine hollow shaft 99. 33y virtue of this motion the h. .t lever 105 and 105 which en'- with the sleeve 110 in'iparts to the "ate'ltlii a motion transverse to the folding lo seen in i 'ir'erent positions in i0, 1.0 it). it tie some time the te 103 rotates sothat the 110th ltl ladeiral shaped pathj The frone end that the paper tube, as can be i g 11 and-11 projects somewhat, i beyona the Lace of the plate 103 and by virtue the motion 01 the tucking plate as above indicated, the end of the paper tube wired in, asillustrated in front View 111 in there is illustrated a modificadevice accord gto which a: is used instead of a knee t lever being arranged to The ri hthancl is connected to tihe plate end is gn'essed by the spring 124 onto the truncated cone 125 mounted on the sleeve 110. of this device will be self evident from the description given above with reference to Figs. and t5.-

, in Figs 1, 2 and 3 a further slight modification is illustrated in the tucker operating In these figures a one-armed lever 1.26 is pivoted to the machine standard at the pivot 12. the other end of the lever 120 is provided with a roller 11? which travels on the cam disk 118. On the lever 126 there is arranged a roller 128 engaging with the sleeve 110 of the tucking in device so that by theoscillatory motion of the lever 126 the sleeve llO is moved transversely to the spindle in the manner above set forth.

I claim i I. In combination with intermittent feeding mechanism for a paper strip, mechanism for folding said strip into tube form comprising a main spindle part (56), a. semicircular preliminary former attached to and partly surrounding said main part, a sleeve I'ornu-r for completely forming said paper tube, a housing into which the tube passes, atitling core composed of relatively moving parts in said housing and working" within the paper tube, and means for expanding and contracting said filling core, forthe' purpose set forth.

:2. ln \ombination with intermittent feeding mechanism for a paper strip, mechanism for folding said strip into tube form, con prising a main spindle part having formers '.t .--,ociated therewith for bcndii'ig said strip into tube-form, means for uniting the adjat-entedges of said bent. tube, an adjustable tilting core over which said tube. with its united ends passes, and means for expanding and contracting-said core and means for aching in the edges of the tube after expansion of same by the filling core, as set forth. 3. In a machine for making paper tubes from a paper strip in combination, two knurled wheels for feeding the paper strip intermittently and uniting the longitudinal edges of the strip, means for rotating one of said wheels, a folding spindle comprising a main spindle part (5(3) mounted on the machine and carrying the other knurled wheel, a semi-circular piece attached to the main spindle part and a folding knife carried by said main spindle part, before said The ope 'ation' semicircular piece, a rod provided with a head and movably carried by the said main spindle part, a further head carrying part attached to the front of the main spindle part, the head on said part being arranged to cotiperate with the head on-the movable rod, substantially as described.

t. In a machine for making paper tubes from a paper strip, in combination, two intermittently movable knurled wheels for feeding the paper strip and uniting the edges of the same, a folding spindle com-' prising a. stationary main spindle part suspended from the machine frame and formers thereon for bending, and shaping the strip into tube form, an extension piece fixed on said main spindle part and having a semicircular head thereon, a rod slidably mounted on said main shaft and provided with a semicircular head coilpe 'ating with the first mentioned head to form a filling core for the paper tube, and means for reciprocating said rod, substantially as set forth.

5. The herein described folding spindle for making paper tubes from a paper strip, comprisin a main body part (5(5) adjustably mounted on the machine frame, a'front extension part attached to the end of said main body part, a reciprocating rod (70, 71) provided with eyes engaging the main body part and the front extension part, a bow former associated with said main body part and a knife arranged in front of the bow and attached to said body part (56) substantially as described.

' 6. The herein described device for tucking in one end of a paper tube comprising a tucking plate (103) having a notch therein and adapted to rotate and reciprocate simultaneously, a. head guiding said plate a toothed shaft to which said guiding head is fixed. a sleeve slidably mounted on said toothed shaft (100) and arranged to rotate therewith, a lever engaging with said sleeve and the tucking plate (103) for reciprocating the latter, and means for sliding the sleeve on the toothed shaft, substantially as set forth.

In witness whereof I have hereunto set my hand in the presence of two witnesses.

AUGUST ABEL. Vitnesses:

STEPEN KUNTZ, BENJAMLN F. Lmrenn. 

